Convert a.u. of length to Earth's polar radius
Please provide values below to convert a.u. of length [a.u., b] to Earth's polar radius [R_p], or Convert Earth's polar radius to a.u. of length.
How to Convert A.u. Of Length to Earth's Polar Radius
1 a.u., b = 8.32464793381992e-18 R_p
Example: convert 15 a.u., b to R_p:
15 a.u., b = 15 × 8.32464793381992e-18 R_p = 1.24869719007299e-16 R_p
A.u. Of Length to Earth's Polar Radius Conversion Table
| a.u. of length | Earth's polar radius |
|---|
A.u. Of Length
The atomic unit of length, also known as the Bohr radius (a₀), is approximately 5.29 x 10⁻¹¹ meters.
History/Origin
The Bohr radius is named after Niels Bohr, who proposed a model of the atom in 1913 where the electron orbits the nucleus at specific distances. The Bohr radius is the most probable distance between the proton and electron in a hydrogen atom in its ground state.
Current Use
The atomic unit of length is used in atomic physics to simplify calculations and equations.
Earth's Polar Radius
The Earth's polar radius is the distance from the center of the Earth to the North or South Pole, approximately 6,356.8 kilometers.
History/Origin
The fact that the Earth is an oblate spheroid, flattened at the poles, has been known since the 18th century. Modern measurements are made with high precision.
Current Use
The Earth's polar radius is a key parameter in geodesy and is used to define the Earth's shape and gravitational field.